Nail-driving machine.



NAIL DRIVING MAGHINB.

Patented Apr. 27, 1909.

3 BHEETS--SHEET 1.

l 2 [fr v W. R. BARGLAY & A. BATES.

APPLICATION FILED JULY 7, 1904. RENBWBD SEPT. 4, 1908.

W. R. BARCLAY & A.. BATES.

NAIL DRIVING MACHINE. APPLICATION FILED 'JULY 7, 1904. IIBNEWBD SMT. 4,190s.

3 SHEETS--SHEBT 2.

Patented Apr. 27, 1909.

y @www4/WM5- W.,R. BARGLAY s A. Extras.A NAIL DRIVING MAGHINEAP-PLIOATION FILED JULY 7, 1904. RENEWED SEPT. L,1, 1908. 91 9,678.Patented Apr. 27, 1909;

3 SHEETS-SHEET 3.

Fay. 159.

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UNrrn spares PATENT FEQE.

WILLIAM RODERICK BAROLAY AND ARTHUR BATES, OF LEICESTER, ENGLAND,ASSIGNORS TO UNITED SHOE MAOHNERY COMPANY, OF NElV JERSEY,

OF PATERSON, NEW JERSEY, A CORPORATION NAIL-DRIVING MACHINE.

Application filed July 7, 1904, Serial No. 215,680.

To all whom it may concern.'

Be it known that we, WILLIAM Romeinen BARCLAY and ARTHUR BATES,respectively, a citizen of the United States of America and a subject ofthe King of England, both residing at Leicester, in the county ofLeicester, England, have invented certain new and useful Improvements inor Relating; to \Tail Driving Machines, of which the following is aspecilioation.

This invention relates to nail-driving machines, and more particularlybut not eX- clusively to machines for attaching heels to boots or shoes,in which the nails are sometimes driven from a horn placed inside theboot or shoe, and while being driven are deflected toward the center ofthe heel by naildetlectors in the nail passages.

The object of the invention is to permit the nail-holding passages ofthe horn to be readily loaded with nails without interference from thenail-dellector which as hitherto arranged partially obstructed andrendered diilicult the insertion of nails into the nail passage bynecessitating; the usage of considerable force upon each successive nailto make it displace the deflector as it entered into the nail passage.liuthei-nwre, in addition to the above cited drawbacks to the insertionof nails loaded individually by hand into the nail passages, naildellectors as heretofore arranged precluded the possibility of theloading` by gravity of nails simultaneously into a plurality of nailpassages from corresponding' pockets in an auxiliary nail carrier, thesaid pockets of which had been initially iilled with the nails byunskilled labor or by an automatic nail assorting` mechanism during;4the nail driving;- operati'on of the machine as is well understood.

rlhe object of this invention is aecomplished by combiningr with naildelectors operating` in nail passages, mechanism adapted to retain thenail deilectors clear of the nail passages and to release the said naildeilectors to deflect the nail` According; to a preferred type ofconstruction un'der this invention there is coinbined with thenail-conduit and a nail-derlector a yieldingly-supported member engagingand controlling the nail-de'llector and arranged to be moved by the workout of a normal position for the purpose of projecting the naibdetlectorinto the nail con- Specification or" Letters Patent.

Patented April 27, 1909.

Renewed September 4, 1908. Serial No. 451,737.

l duit just prior to the driving of the nail so that it may be ready todeflect the point of the nail on the driving of the latter, and forwithdrawing the dellector out of the nail conduit when theyieldingly-supported meniber is allowed to return to its normal positionupon removal of the work, thus keeping; the nail-conduits clear forreloading.

ljielerably the yieldingly-supported meinber may be a nail-receivingtube adapted to rise and fall in relation to the horn, and normally keptat the upper limit oli its travel by a springl or a weighted lever, thetube havingl a cam upon it directly engaging a nail delector so that,when the tube is depressed against the resistance of its spring orweight by the work bearing upon its upper end, the cam moving with itallows the nail-dellector to be projected into the nail-receiving tube,while upon removal of the work the tube ascends and its cam causes thenail-deflector to return to its original position leaving' the tubeclear lor reloading. A series of such naibi-eccivingI tubes can beaggregated into or supported by a block 3 there be a cam upon each tubeto operate the deilcctor appropriated thereto. Or there may ie a singlecam for the series ol tubes operatively connected to all the dellectorsand actuating them simultaneously. The nail-receiving tube or tubes neednot be employed to actuate the cam or cams, l'or it is within thepresent invention to provide a device other than the tube and adapted tobc moved by the work l'or the purpose olE operating the deiiectors. Itis also within the present invention to operate by a machine member adellector or series ol dellectors lor the purpose of insuring,I theabsence of dellectors lrom the nail-conduits at times when thoseconduits are to be loaded, even though the said machine member insteadol being operated by the work is automatically controlled by the machineso as to be operated mechanically or electro-mechanically at a suitableJoint in each cycle olE operation ol said inac iinc, say by a cam, orelectrically by a machineoperated circuit-controller in a circuit inwhich an electro-magnet to actuate the dellectors is included. find itis equally within the present invention to provide said machine-memberwith a hand-lever or a foot treadle for operating it non-automatically,for it had hitherto been necessary to force the nails each indepemlentlyby hand into the il t) nail passages so as to cause said nails to movethe detlectors out of the nail passages. And the present invention isbelieved to be the first to provide a machine-member to accomplish thisdelector-retracting operation by controlling the relative positions otthe nail-defleetor and nail-conduit either or both of which may move toe'llect their relative motion.

ln the accompanying drawings Figure 1 is a side elevation of the upperend of a horn such as is employed in nail driving machines for attachingheels to boots or shoes, the horn being provided with nail delectorsconstructed and oierated in accordance with this invention; ig. 2 is asection, oi' Fig. 1 talen on the line 2 2 of said Fig. Fig. 3 is a planof the horn shown in side elevation in Fig. 1, Fig. 4 is a part of Fig.2 drawn to a scale larger than that of Fig. to more clearly show theoperative parts, which parts are in position to allow the nail-holdingpassages to be loaded with nails; Fig. 5 is a view similar to Fig. L'lwith the parts of' the mechanism in the position into which they aremoved when the horn and work are brought into contact as shown prior tothe driving ofthe nails out of the former into the latter; Fig. 6 is aview similar to Fig. 4 but with an alternative detail hereinafter moreparticularlyT referred to. Fig. 7 shows in vertical section another'arrangement wherein certain of the details illustrated in Fig. l aremodified; Fig. S is a side elevation somewhat similar to Fig. 1 but witha single plunger, instead of the nail tubes, to operate the deflectors,Fig. 9 is a vertical section of Fig. 8 taken on the line 9v@ of saidFig. 8; Fig. 10 is a plan or' the horn illustrated in Fig. 8; Figs. 11and 12 represent in plan and side elevation respectively a cam-ringforming part of the construction shown yin Figs. 9 and 10. Fig. 13 showsa delleetor slide in side view and Fig. 14 shows the same slide in planand Figs. 15 and 16 are two views of a circular spring forming part ofthe mechanismV shown in Fig. 9. Fig. 17 is a view similar to Fig. 2 butillustrating a modification in which the several nail-receiving tubesare secured to a block provided with a ro( capable of beingautomatically operated by some convenient part of the nailing machine soas to be operated mechanically or electromechanically at a suitablepoint at each cycle of operation of said machine7 or capable of beingoperated non-automatically by a hand-lever or a foot treadle instead. oior in addition to its automatic operation; 18 illustrates theconstruction shown in Fig. 9 modified to enable it to be operated automatically or non-automatically, or both automatically andnon-automatically'as in the case of Fig. 17 and having included in chainlines an arrangement of weightedv lever the spring HX shown in the upperportion of Y the figure.

Lilie letters ol' reference indicate like parts throughout all theligures in the drawings.

lieierring to Figs. 1 to 5 the work-supporting .horn A is made hollowand contains within its u per part a head B which iorins part ci apliinger C adapted to be reciprocated within the horn A. Attached to thehead B are a number oi' drivers D which project upward into acorresponding number oi' nail-receiving tubes or conduits E into whichthe nails are to be loaded. The nailreceiving tubes or conduits the"machine members in this exemplilication oi' the present invention, formguides which maintain the drivers D in position to act on the heads oi'the nails and drive them into the heel of the boot er shoe or other workupon the upward movement or" the head B, the be. t or shoe being pressedagainst the upper surface o'l' the horn A.

To deflect the points of the nails toward the center ofthe heel as theyare being driven each nail-receiving tube or conduit E is provided witha dei'iector F which is located within a passage A0 in the upper part ofthe horn A, each deliector F so engaging the nail tube as to preventrotation of the latter and being arranged to project at certain timesthrough a slot or opening E in the wall of the nail-receiving tube orconduit and engage the nail (Fig. 5.)

The passages in which the deiiectors F are located are arranged radiallyas shown in Fig. 3, and the deflectors F are pressed inward by separatesprings or by a single spring acting simultaneously on all thedeiiectors, the latter being the one illustrated in the drawings andconsisting of a rubber band G located within a groove A. surrounding theupper part of the horn A, theV band G also fitting in grooves F in theouter ends of the deilectors F.

Each nail-receiving tube E is arranged to project above the uppersurface ot' the horn A and is kept yieldingly in its uppermost positionby a spring H which surrounds the tube E and bears at one end against acollar formed thereon, the other end of the spring H bearing against ascrewed plug l by which it is secured in place and by which thecompression of the spring H can be adjusted. The collar Figlorms a stopbearing against a shoulder in the bore in which the tube E moves andserving to prevent it from coming up out of the horn.

rlhe lower end of the slot or opening E in each tube E is made with acam or incline E2 which cooperates with a similar cam or incline FZformed on the inner end of the deilector F so that as the nail receivingtube or conduit E is pressed up by the spring H the deflector F ispushed back in opposition to which can be employed in substitution for ithe rubber spring G and the nail-receiving tube or conduit E is leftwith an unrestricted passage for the reception of the nail as clearlyshown in 4. Moreover should the `detlecator be in the way ol the tip ofthe nail-driver in the conduit, the driver will then act lon the inclineF2 and, as the detlectors are yieldingly supported or backed by thespring G, return thein Without harm.

In driving the nails into the Work the upper part of the horn isinserted in the boot a portion ot' which is to be seen in Fig. 5. Theboot nieves the projecting ends ot' the nail receiving tubes er conduitsE 'inward relatively to the horn A, and the tubes E are thus caused tonieve the Canis or inclines E2X away from the earns or inclines F2 andallow the .ends lo1 the detlectors F to be protruded by the rubberspring G into the tubes by way et' the slots in the Walls of thenailreceiving tubes or conduits. rlhe drivers D are then raised by anyconvenient operating' mechanism and as the points of the nails arcdeflected by the -deiiectors F, (as shown at Y Fig) the nails will bedriven in an inclined direction eonvergently into the heel et the bootor shoe. i

Then the boot or shoe is removed trein the horn the springs H will raisethe nail-receiv- 4ing tubes or conduits E and the inter-action of thecams-or inclines E2 and Ftvsill remove the deflect-ers clear el thepassafv'es in the nail* receiving` tubes or conduits l thus leavingtheni 'free to be reloaded with nails.

ln the section shown in Fig. a -weighted lever lil is provided insubstitution l'orI the spring described -with reference to the precedingarrangement. The lever' ll is weighted at .ll-l2 and being centered atll acts to li'l't the nailreceiving tube or conduit E into its elevatedposition7 the end llt oi' the lever being slotted and engaging a stud orprojection E3 upon the said nail-receiving; tube or conduit E.

In the arrangement shown in Fig'. 7 a scries et' the run'l-receivingltubes or conduits E is aggregated into or supported b v an annular blockE4 vvhieh is adapted to slide u ithin a recess in the head of the horn.

A central stein AIX exiends dou'niv ard 'from the upper part oi' thehorn and screw- -thr -aded aat its lor. er end to receive a uut l whichis provided uith an extension upon which the bloclr Et is adapted toslide. Between the nut l and the block FH is a springl H5 u hic-h actsupon said block E" to innintain it and the Inni-receiving tubes orconduits E secured thereto7 normallyr in their elevated position.

Each nail-receivingl tube or conduit E is provided with a detlector Fconstructed and arranged to act cenjointly with the said receiving tubeor conduit in the saine inanner as already described 'with reference tothe eorresipondinglydettered parts illustrated in Figs. l to 5.

ln the modification shown in Figs. S te 1G ol the drawings thework-supporting horn is provided u ith a single "rnaclrino-inernber-which in the example isla plunger which may advantageously be locatedwithin an opening or recess AX central in the v.erh-supporting horn Theplunger lil): rests upon a spring iiX situated 'within a recess in thehorn and is so arranged that a part ol` it will project above the uppersurl'ace ol' the horn so as 'to be in position to be depressed uhcn theWork is brought in contact `with the horn or pressed between the hornand an abutment. lfho plunger EN is provided u'ith a spirall'jT threadedpart d which engages a nut l il'orrning' part el the horn A or sosecured as not to be rotatable Within it so that as the plunger ,FX isdepressed into the horn it will also receive a movement oil' partialrotation. A single cani plate L provided with cani slots li is receivedin a recess in the horn in which it may turn about the axis el' theplunger, and has a sleeve or boss lf' (see lligs. Q and l2) surroundingrthe plunger EX. A stop M' secure l to and projecting; 'l'rorn the sideo'll the plunger it); extends into a gap lj l'orincd in the sleeve lf'and inade to luwe clearance in reiation to thc projection l'or a purposehereinafter explained. spring N engaged by one o'l' its ends with thenut li. and by its other end with the sleeve lf tends always to rotatethe sleeve li in the direction opposite to that iudicated by the arrowthereon.

.lellector slides FX (see l'iigs. 13 and i4) are radially arranged (secFig. l0) above thc carn 'plato L; each slide t is movable ondwise inguide channels in 'the head ol' the horn7 lies across a .nail pz'tssagcll" thereiil, and is provided vyith a pin 'which extends dowrnvard toengage that one ol' the earn slots L that is appropriated to it in thecani plate L.

The nail conduits are constituted h v those portions oil the head o'l'the horn in ulrich are the passages EU, these passages servingl toicceive the nails and to guide the drivers l) as shown in Fig, t).

As long' as there is no Work against the head ot' the work-summitinghornV the plunger EX occupies the position in which itis indicated indotted lines in that ligure; the cani plate L and its sleeve L2 which asaforesaid are capable of rotation about the axis ol' the plunger will atsuch a time be in such a position in the are olE their rotation as tolrccp the pins O and therefore thc dellcctors li' at the outer lirnit oftheir travel in the channels o'lE the head7 and to keep thc ssnallerends ol openings l in the deltoctor slides in alineinent with thepassages E in the Work-supporting horn so as to lcavc these passagesunobstructed and pei-init thc lrce insertion ol nails therein.

The direction in which ythe plunger nieves when it is depressed uponcontact between it Yand the work is indicated by the spiral arrow uponit, and the spring N (Figs. 9, 15 and 16) is so proportioned andarranged that it is capable of causing the sleeve L2 to follow up theprojection M through the Whole of the small angular movement given tothe latter in the descent of the plunger'. ln thus following theprojection M to the fullest eX- tent the sleeve L2 and cam plate L wouldrotate sufliciently to draw the deflector slides FX inward to the innerlimit of their travel; but as will presently be explained the sleevedoes not always follow the projection M through the full angular'movement of the latter.

The portion of the deiiector slide adjacent to one side of the smallerend of the hole P, which is chamfered or under-outras at P, constitutesthe actual deilector, the chamfered surface being provided in order thatwhen the drivers l) move upward any portion of each deflector slide thatmay happen to lie in the path of a driver shall be moved by the thrustof the driver tip against the chamfer so that the upper and smaller endof the hole P shall become concentric with and afford passage for thedriver.

Should a nail be present and in the path of the deflector slide in anypassage E when the deflector slides FX are drawn inward by the action ofthe sleeve L2 in following up as de-v scribed the projection M under theinfluence of the spring N, the movement of the deiiectors, cam plate Land sleeve L2 will be stopped by the nail short of the maximum extent oftheir movement while the projection M and plunger EX will continue tomove in company in the direction of the spiral arrow in Fig. 9, and itis in order that the sleeve while thus stopped may offer no impedimentto this continuation of the movement of the projection M and the plungerthat it is arranged to be yieldingly actuated by the spring N and thatthere is the clearance aforesaid between the left side of the projectionM as viewed in Fig. Q and the gap in the sleeve. The same spring andclearance permits not only the stoppage of the sleeve but also allows itto be moved back in the direction of the arrow marked upon it in Fig. 9when the chamfered portions of the deilector slides are acted upon bythe driver tip in the manner hereinbefore set forth, or

by a nail rising upward on and with the driver.

ln Figs. 8, 9 and 10 the reciprocating head BX which carries thedriversD is attached to a hollow slider CX surrounding the stem AXX of the worksupporting horn instead of being contained within it in the mannerhereinbefore described with reference with Figs. 1 to 5. After the nailshave been driven by the drivers D and the latter have been lowered bythe usual mechanism the work is removed einer/e froln the horn, theplunger EX will be again caused to project above the upper surface ofthe horn by the action of the spring HX and the deflector slides FXmoved outward to bring the openings P once more into line with the nailpassages so as to leave the latter free to be reloaded with nails.

in the arrangement illustrated in Fig. 17 the nail-receiving tubes orconduits E are provided with cams or inclines EZX which act on similarcams or inclines F2 on spring actuated nail deilectors F to remove themfrom out of the passage of the nail-receiving tubes or conduits E whenthe said nail-receiving tubes are raised by the springs H into theiruppermost or nail-receiving position in a manner similar to thatdescribed with reference to the arrangement shown in Fig. 2; but insteadof the nail-receiving tubes or conduits li being depressed by theirupper parts coming into contact with the work for the purpose of causingthe dellectors F to act upon and deflect the nails within thenail-receiving tubes or conduits the latter are connected to a block orsupport E situated within the horn the block or support being secured toor made integral with some movable part or member secured upon orforming an element of the machine for instance 'the operating-rod Qwhich passes downward through a passage in the work-supporting horn.

The tubes E may be automatically controlled to rise at appropriate times(under the action of the spring H) by connecting the machine member-Qwith a cam or with any moving part of the nail-driving' machine so as topermit tubes E to so operate upon the deiiectors F that their ends willbe removed from the nail-passages and leave the latter free for theinsertion of nails.

v"'hen the rod Q block and nail-receiv ing tubes E are lowered by theaction of the cam or otherwise the cams or inclines EZX on thenail-receiving passages or conduits E are removed from the cams orinclines luren the deflectors F and the said deiiectors are caused bythe spring G to protrude into and deflect the nails within the passages.

in the arrangement shown in Fig. 18 the rod Q which may be controlled asabove described is connected (by a joint permitting relative rotation ofthe parts Q and J) to the spirally-threaded part l of the plunger EX ofa construction otherwise the same as is shown in 9 aforesaid.

in Fig. 18 the plunger EX does not extend above the upper surface of thehorn and is therefore not in a position to be acted upon by the Worl butis raised and lowered by the rod The rod Q of Figs. 17 or 18 may beattached to a lever Q/ (Fig. 18) centered at Q2 and operated by the camaforesaid and the plunger' E may be kept in its raised position by thespring H or by a counterbalance Weight Q3 shown in chain lines.

Vhat we claim as our invention and desire to secure by Letters Patent is:d

1. A nail-driving machine, having, in combination, nail-drivingmechanism, anail deiiector arranged to control the insertion ot' a naildriven by said mechanism, and means for Withdra fing said dei'lectorfrom the path of the nail.

2. In a nail -drivinO' machine the combination with a nail conduit and anaihdeiiector yieldingly supported in order that it may yield to the.nail driver or a nail moved thereby, ol' a yieldingly-supi')ortedmachine member controlling the nail-deflector l'or the purposedescribed.

3. In a nail-driving machine the combination with a naihconduit and anaii-deflector ot' a yieldingly-supported machine member controlling thenail-deiector for the purpose described and operated by the work.

4. In a nail-driving machine the combination with the horn oi' a machinemember, a cam concentric with it, and means whereby the said machinemember when depressed is caused to receive also a movement ol' rotationand to communicate that movement to the cam for the purpose described.

5. A nail-driving machine, having, in combination, a nail-conduit, adriver working in said conduit, and a nail deflector i'or controllingthe position olI a nail in said conduit arranged to be withdrawn fromsaid conduit to permit the introduction ol the nail.

6. In a nail-driving machine, the combination with relatively movablenail-driving mechanism and nail-guiding means, said nail-guiding meansbeing constructed to remain normally out oi' the path of the nails, ofmeans arranged to be actuated at a predetermined point in the cycle o1'o erations of the machine for causing said nai -guiding means to assumeoperative position within the path of the nails.

7. In a nail-driving machine, the combination with a nail block providedwith nail passages and drivers working in said passages, of naildeflectors arranged adjacent to the acting face of the nail block andmovable into and out of said nail passages, a controlling member forsaid deflectors movably mounted in said nail block, and means formaintaining said membernormally in position to retain said dei'lectorsout of said nail passages.

8. ln a nail-driving machine,-a nail conduit, a driver arranged to movein said conduit, a nail-guiding device arranged adjacent to thedischarge end ol' said conduit and movable into and out oi' the pathoi'l a nail guided by said conduit, means i'or yieldingly holding saidguiding device in operative position in the path ol' the nail, and meansl'or moving said guiding device out oi said path to permit a nail to besupplied to the discharge end oll the conduit.

9. In a naildriving machine, the combination with a nail block having anacting face adapted to bear on the work and provided with driverpassages terminating' in said lace, oll nail deiiectors supportedadjacent to said iace movable into and out ol' the path o'l' the nailsand maintained normally out oll said path, and means arranged to becontrolled by pressure ol' the work upon said nail block l'or movingsaid dei'lectors into el'i'ectivc position.

10. In a nail-driving machine, the combination with a nail blockprovided with a plurality ol' nail passages, drivers arranged to work insaid passages, a plurality oi' nail guiding devices 'l'or said passages,and means l'or movably sustaining said devices arranged to permit themto be moved out ol eil'ectii'fe relation to said passages, oi' mechanismfor simultaneously withdrawing said devices from the path ol' the nails.

1 1. n nail driving machine, having in combination, a nail conduit, adriver working in said conduit, a nail guiding device l'or controllingthe position oi' a nail in said conduit prior to its entrance into thework constructed `for yielding movement to accommodate the passage ol'the nail through said conduit, means l'or withdrawing said device fromthe path oi' the nail to permit the supply oi' the nail to said conduit,and means for returning said device to operative position.

In testimony whereo'l'l we have signed our names to this specificationin the presence o'l' two subscribing witnesses.

WllililAM RODERICK BARCIIAY. Alt'lllUR- BATES. Witnesses:

ARTHUR Ennns'r JERRAM, JOHN RICHARD LAW.

